I haven't had the opportunity to read the entire e-book but my Great Ancestor, Rev. Samuel Trawin, helped form the missionary in Calcutta. He is on 3 pages of this book. It is known from letters that his wife Mary (Webber) spoke Bengali as well and did great work with the children. My work is almost done, I have traced my family from Chicago, where I reside, back to Port Hope Ontario, and South Molton Devon, which is where Samuel Trawin was born in 1791. I was so glad to find this e-book and see a part of my family history in it. I have many old family letters and documents about this Mr. Trawin.